Invariant grating pseudoimaging using polychromatic light and a finite extension source

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dc.contributor.authorSánchez Brea, Luis Miguel
dc.contributor.authorSaez Landete, José
dc.contributor.authorAlonso Fernández, José
dc.contributor.authorBernabeu Martínez, Eusebio
dc.date.accessioned2023-06-20T10:45:25Z
dc.date.available2023-06-20T10:45:25Z
dc.date.issued2008-04-01
dc.description© 2008 Optical Society of America. This work has been supported by the “Codificación óptica de la posición a escala nanométrica: Nuevas tecnologías y dispositivos ópticos” project (DPI2005-02860) of the Ministerio de Educación y Ciencia of Spain and the “Tecnologías en ecología, alta precisión y productividad, multifuncionalidad, y tecnologías de la información y comunicaciones en Máquina Herramienta” CENIT project of the Ministerio de Industria, Turismo y Comercio. During the realization of this work, L. M. Sanchez-Brea was contracted by the Universidad Complutense de Madrid under the “Ramón y Cajal” research program of the Ministerio de Educación y Ciencia of Spain.
dc.description.abstractThe Talbot effect is a well studied phenomenon by which grating pseudoimages appear at certain periodic distances when monochromatic light is used. Recently, numerical simulations have shown a new phenomenon; when a polychromatic light beam is used in a double grating system, the intensity of the pseudoimages presents a transverse-profile that remains unaffected over a wide range of propagation distances. This effect can be used to increase the tolerances of gratings based optical devices, such as displacement measurement systems, interferometers, and spectrometers. The pseudoimages formation with a polychromatic and finite extension light source is analytically and experimentally demonstrated. Relatively simple analytical expressions for the intensity and the contrast allow us to predict when pseudoimages present a constant contrast and when they disappear. Furthermore, we experimentally obtain the pseudoimages using the proposed configuration, corroborating the theoretical predictions.
dc.description.departmentDepto. de Óptica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Educación y Ciencia (MEC), España
dc.description.sponsorshipMinisterio de Industria, Turismo y Comercio, España
dc.description.sponsorshipUniversidad Complutense de Madrid (UCM)
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/26259
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dc.identifier.doi10.1364/AO.47.001470
dc.identifier.issn1559-128X
dc.identifier.officialurlhttp://dx.doi.org/10.1364/AO.47.001470
dc.identifier.relatedurlhttp://www.opticsinfobase.org
dc.identifier.urihttps://hdl.handle.net/20.500.14352/51158
dc.issue.number10
dc.journal.titleApplied Optics
dc.language.isoeng
dc.page.final1477
dc.page.initial1470
dc.publisherThe Optical Society Of America
dc.relation.projectIDDPI2005-02860
dc.relation.projectIDCENIT project “Tecnologías en ecología, alta precisión y productividad, multifuncionalidad, y tecnologías de la información y comunicaciones en Máquina Herramienta”
dc.relation.projectID“Ramón y Cajal” research program
dc.rights.accessRightsopen access
dc.subject.cdu535
dc.subject.keywordLAU
dc.subject.keywordIllumination
dc.subject.keywordRegime
dc.subject.ucmÓptica (Física)
dc.subject.unesco2209.19 Óptica Física
dc.titleInvariant grating pseudoimaging using polychromatic light and a finite extension source
dc.typejournal article
dc.volume.number47
dspace.entity.typePublication
relation.isAuthorOfPublication72f8db7f-8a25-4d15-9162-486b0f884481
relation.isAuthorOfPublicationf7b5b178-742c-418d-80d3-769a169f6dd9
relation.isAuthorOfPublication.latestForDiscovery72f8db7f-8a25-4d15-9162-486b0f884481
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